We've had QLD arrowroot in the garden for a few years now. What a great plant, it's so hardy, chooks love the leaves, green and attractive in the garden. It's prolific, our ~6 tubers would now be well over a hundred. Tonight for the first time we ate it and it was good. We made arrowroot mash.. recipe: choose new red arrowroot tubers which have not shooted, or have only just shot. Peel the tubers untill all vibrous material is gone, you might need to peel it more than once. Cook as you would mash potato, perhaps a bit longer. Add garlic, butter and milk to taste. It's less smooth than potato mash, but I love that it's more than edible and so easy to grow. try it!